v0.3.0: added wand of blast wave

src/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java

@@ -0,0 +1,179 @@
+package com.shatteredpixel.shatteredpixeldungeon.items.wands;
+
+import com.shatteredpixel.shatteredpixeldungeon.Assets;
+import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
+import com.shatteredpixel.shatteredpixeldungeon.DungeonTilemap;
+import com.shatteredpixel.shatteredpixeldungeon.ResultDescriptions;
+import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
+import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
+import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Paralysis;
+import com.shatteredpixel.shatteredpixeldungeon.effects.Effects;
+import com.shatteredpixel.shatteredpixeldungeon.effects.MagicMissile;
+import com.shatteredpixel.shatteredpixeldungeon.effects.Pushing;
+import com.shatteredpixel.shatteredpixeldungeon.items.weapon.melee.MagesStaff;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.mechanics.Ballistica;
+import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
+import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
+import com.shatteredpixel.shatteredpixeldungeon.utils.Utils;
+import com.watabou.noosa.Game;
+import com.watabou.noosa.Group;
+import com.watabou.noosa.Image;
+import com.watabou.noosa.audio.Sample;
+import com.watabou.utils.Callback;
+import com.watabou.utils.Random;
+
+/**
+ * Created by debenhame on 05/05/2015.
+ */
+public class WandOfBlastWave extends Wand {
+
+	{
+		name = "Wand of Blast Wave";
+		image = ItemSpriteSheet.WAND_BLAST_WAVE;
+
+		collisionProperties = Ballistica.PROJECTILE;
+	}
+
+	@Override
+	protected void onZap(Ballistica bolt) {
+		Sample.INSTANCE.play( Assets.SND_BLAST );
+		BlastWave.blast(bolt.collisionPos);
+
+		int damage = Random.NormalIntRange(1, 6+(int)(level*level/4f));
+
+		//presses all tiles in the AOE first
+		for (int i : Level.NEIGHBOURS9){
+			Dungeon.level.press(bolt.collisionPos+i, Actor.findChar(bolt.collisionPos+i));
+		}
+
+		//throws other chars around the center.
+		for (int i  : Level.NEIGHBOURS8){
+			Char ch = Actor.findChar(bolt.collisionPos + i);
+
+			if (ch != null){
+				ch.damage(damage, this);
+
+				if (ch.isAlive()) {
+					Ballistica trajectory = new Ballistica(ch.pos, ch.pos + i, Ballistica.MAGIC_BOLT);
+					int strength = 1 + ((level + 1) / 3);
+					throwChar(ch, trajectory, strength);
+				}
+			}
+		}
+
+		//throws the char at the center of the blast
+		Char ch = Actor.findChar(bolt.collisionPos);
+		if (ch != null){
+			ch.damage(damage, this);
+
+			if (ch.isAlive() && bolt.path.size() > bolt.dist) {
+				Ballistica trajectory = new Ballistica(ch.pos, bolt.path.get(bolt.dist + 1), Ballistica.MAGIC_BOLT);
+				int strength = level + 3;
+				throwChar(ch, trajectory, strength);
+			}
+		}
+
+		if (!curUser.isAlive()) {
+			Dungeon.fail( Utils.format(ResultDescriptions.ITEM, name) );
+			GLog.n("You killed yourself with your own Wand of Blast Wave...");
+		}
+	}
+
+	private void throwChar(Char ch, Ballistica trajectory, int power){
+		int dist = Math.min(trajectory.dist, power);
+
+		if (dist == 0) return;
+
+		int newPos = trajectory.path.get(dist);
+
+		if (Actor.findChar(newPos) != null){
+			newPos = trajectory.path.get(--dist);
+		}
+
+		if (newPos == ch.pos) return;
+
+
+		Actor.addDelayed(new Pushing(ch, ch.pos, newPos), -1);
+		ch.pos = newPos;
+		Dungeon.level.press(newPos, ch);
+
+		if (ch.pos == trajectory.collisionPos) {
+			ch.damage(Random.NormalIntRange((dist + 1) / 2, dist), this);
+			Paralysis.prolong(ch, Paralysis.class, Random.NormalIntRange((dist + 1) / 2, dist));
+		}
+
+	}
+
+	@Override
+	//a weaker knockback, not dissimilar to the glyph of bounce, but a fair bit stronger.
+	public void onHit(MagesStaff staff, Char attacker, Char defender, int damage) {
+		int level = Math.max(0, staff.level);
+
+		// lvl 0 - 25%
+		// lvl 1 - 40%
+		// lvl 2 - 50%
+		if (Random.Int( level + 4 ) >= 3){
+			int oppositeHero = defender.pos + (defender.pos - attacker.pos);
+			Ballistica trajectory = new Ballistica(defender.pos, oppositeHero, Ballistica.MAGIC_BOLT);
+			throwChar(defender, trajectory, 2);
+		}
+	}
+
+	@Override
+	protected void fx(Ballistica bolt, Callback callback) {
+		MagicMissile.slowness(curUser.sprite.parent, bolt.sourcePos, bolt.collisionPos, callback);
+		Sample.INSTANCE.play(Assets.SND_ZAP);
+	}
+
+	public static class BlastWave extends Image {
+
+		private static final float TIME_TO_FADE = 0.2f;
+
+		private float time;
+
+		public BlastWave(){
+			super(Effects.get(Effects.Type.RIPPLE));
+			origin.set(width / 2, height / 2);
+		}
+
+		public void reset(int pos) {
+			revive();
+
+			x = (pos % Level.WIDTH) * DungeonTilemap.SIZE + (DungeonTilemap.SIZE - width) / 2;
+			y = (pos / Level.WIDTH) * DungeonTilemap.SIZE + (DungeonTilemap.SIZE - height) / 2;
+
+			time = TIME_TO_FADE;
+		}
+
+		@Override
+		public void update() {
+			super.update();
+
+			if ((time -= Game.elapsed) <= 0) {
+				kill();
+			} else {
+				float p = time / TIME_TO_FADE;
+				alpha(p);
+				scale.y = scale.x = (1-p)*3;
+			}
+		}
+
+		public static void blast(int pos) {
+			Group parent = Dungeon.hero.sprite.parent;
+			BlastWave b = (BlastWave) parent.recycle(BlastWave.class);
+			parent.bringToFront(b);
+			b.reset(pos);
+		}
+
+	}
+
+	@Override
+	public String desc() {
+		return "This wand is made of a sort of marbled stone, with gold trim and a round black gem at the tip. " +
+				"It feels very weighty in your hand.\n" +
+				"\n" +
+				"This wand shoots a bolt which violently detonates at a target location. There is no smoke and fire, " +
+				"but the force of this blast is enough to knock even the biggest of foes around.";
+	}
+}